Flour-dressing machine



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' J.' WEBER. v

FLOUR DRESSING MACHINE. No 25a-,452. n Patented 11910.7,1-882.

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UNITED STATES PATENT'v OFFICE.

JOHN WEBER, OF USTER, ZURICH, SWITZERLAND, ASSIGNOR TO JOHN FEICHTER 8U SONS, OFMINNEAPOLIS, MINNESOTA.

FLOUR-DRESSING MACHINE.

SPECIFICATION forming part of Letters Patent No. 253,452, dated February '7, 1882.

Application filed July G, 1881. (No model.)

To all whom it may concern:

Be it known that I, JOHN WEBER, of Uster, Canton of Zurich, Switzerland, have invented a new and useful Improvement in Flour-Dressing Machines, of which the following is a speciication.

Certain parts of the invention described in this application received protectionin England under Letters Patent No. 879, dated February 28, 1880, granted to Frank Wirth, of the firm of Wirth & Go.,througha communication from Messrs. Weber and Bunzl, of Uster, Switzerland, and upon the said patented invention the present is designed as an improvement.

The object of my invention is to provide a new and improved machine for separating the flour and grits from the shells, Sto., of thegrain.

'In the accompanying drawings, Figure lis a longitudinal sectional elevation of my improved tlour dressing machine. Fig. 2 is a cross-sectional elevation. of the same on the line cc cc, Fig. l. Fig. 3 is a cross-sectional elevation of the same on the line y y, Fig. l. Fig. 4 is a longitudinal elevation of a series of scutchers.

The same lettersof refereneeindicate the same or corresponding parts.

The flour passes from a suitable hopper through the conical chute Aiuto the dressingcylinder b, contained in the cylinder B, the sides of which cylinders are covered with silken gauze stretched thereon. In these dressing-cylinders the iiour is exposed to the action of the scutchers C c, consisting of short metal strips, which are alternatelybent forward and backward, the

- strips bent forward being provided with one or more apertures, `D,'as shown in Fig. 4. These strips are attached to rails E, held on a shaft, F, by radial arms G of the same. The shaft F is provided with a joint at J, and its bearing H is pivoted in a vibrating fork, K, which is supported in a sliding and adjustable bearing, L, attached to the upper end of a screw, M, passing through a bent rod or beam, N, by means of which screw M the inclination of the shaft F can be varied at will, all that is necessary being to turn this screw in one direction or the other. A series of hoppers, R R, are arranged below the dressing-cylinder B to receive the dressed flour. The end of theinner cylinder, b, is provided with an end wall, d, adjoining to which there are a series of short radial tubes or nozzles, c, projecting from the cylin der b into a chute, hopper, or box, S, for receiving the shells, &c. The shaft F is rotated by means of a belt passing over the pulleys 'I T, and the shaft Q is rotated from the shaft Fby means of intermediate gearing. A frictionroller, O, is mounted on the shaft Q, and on this roller the end of the cylinderB rests, which is thus rotated very slowly. The bearing of the shaft Q is on a lever, W, which can be adj usted higher or lower by means of a screw, V, whereby the friction between the end ofthe cylinder'B and the friction-Wheel O can be increased or decreased.

The operation is as follows The flour passes through the chute A into the inner cylinder, b, and is thrown about in this sieve-cylinder b by the scutchers c. The line iour and grits pass through the sieve into the large cylinder B, and the shells, 85e., pass through the radial tubes c c in to hopper or chute S. The .scutchers C, that are bent forward and perforated, act by their quick rotation to gather the liour or meal against their forward faces, and such of the liour or meal as is forced through the perforations in the scutchers will be disintegrated or separated from any bran or adhering substance by contact with the sharp edges of the holes as the meal passes through the scutchers, while that portion of the flour or meal which passes between the forwardly bent scutchers will strike against the backwardly-bent scutchers and be violently thrown outward and against the bars and gauze ofthe cylinder, and will there be disintegrated or separated, the line iiour so separated passing through the gauze,while the bran or shells-willv pass out as tailings. The same particles of meal may be acted upon many times before complete separation takes place and all the tine flour is forced through the gauze. From the `cylinder B the flour drops into the hoppers R, and from these is lilledinto sacks or barrels.

Having thus' fully described my invention, I claim as new and desire to secure by Letters Patentl. In amachinefor dressingour,thescutchinder B, clothed with gauze, an inner cylinder, ers C,constructedsubstantially asherein show-n b, within cylinder B, occupying only a part of and described, and consisting o'f a series of its length and covered with gauze,radialtubes I5 metal plates or strips alternately bent forward e e, and chutes S, as and for the purposes de- 5 and backward, the plates bent forward being scribed.

provided with one or more pert'orations, as set In testimony whereof I have signed my name forth. to this specication in 'the presence of two'sub- 2. In a machine for dressing flour, the vcomscribing witnesses. bination ofthe adjustable and jointed shaft F, JOHN WEBER. 1o having arms G, carrying scntchers C, that are Witnesses:

bent forward and perforated, and scutchers c, GUSTAV MANTEL, that are bent backward and notperforated, cyl- M. TAGrGrS.` 

